ATE101858T1 - PROCESS FOR THE PREPARATION OF DEOXYCELLULOSE COMPOUNDS. - Google Patents

PROCESS FOR THE PREPARATION OF DEOXYCELLULOSE COMPOUNDS.

Info

Publication number
ATE101858T1
ATE101858T1 AT90117027T AT90117027T ATE101858T1 AT E101858 T1 ATE101858 T1 AT E101858T1 AT 90117027 T AT90117027 T AT 90117027T AT 90117027 T AT90117027 T AT 90117027T AT E101858 T1 ATE101858 T1 AT E101858T1
Authority
AT
Austria
Prior art keywords
deoxycellulose
compounds
cacl2
licl
cellulose
Prior art date
Application number
AT90117027T
Other languages
German (de)
Inventor
Michael Dr Diamantoglou
Ernst F Dr Kundinger
Original Assignee
Akzo Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzo Nv filed Critical Akzo Nv
Application granted granted Critical
Publication of ATE101858T1 publication Critical patent/ATE101858T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
    • C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
    • C12N11/10—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a carbohydrate
    • C12N11/12—Cellulose or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/08—Polysaccharides
    • B01D71/10—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biochemistry (AREA)
  • Genetics & Genomics (AREA)
  • Wood Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Materials Engineering (AREA)
  • Microbiology (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Saccharide Compounds (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)

Abstract

A method for producing deoxycellulose compounds from cellulose in aprotic solvents with LiCl and/or CaCl2, where the solvent contains, besides LiCl or CaCl2, additionally bromides, iodides, thiocyanates or thiocarbamates of the alkali metals and/or alkaline earth metals, and the cellulose is initially dissolved in a mixture of aprotic solvent and salts, a base and/or a basic salt is added at room temperature, and a sulphonyl halide is added appropriate for the required degree of substitution, and reaction is effected at temperatures between 16 DEG C and 100 DEG C.
AT90117027T 1989-09-08 1990-09-05 PROCESS FOR THE PREPARATION OF DEOXYCELLULOSE COMPOUNDS. ATE101858T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929883A DE3929883A1 (en) 1989-09-08 1989-09-08 METHOD FOR THE PRODUCTION OF DESOXYCELLULOSE CONVERSIONS
EP90117027A EP0416565B1 (en) 1989-09-08 1990-09-05 Method for producing deoxycelluloses

Publications (1)

Publication Number Publication Date
ATE101858T1 true ATE101858T1 (en) 1994-03-15

Family

ID=6388910

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90117027T ATE101858T1 (en) 1989-09-08 1990-09-05 PROCESS FOR THE PREPARATION OF DEOXYCELLULOSE COMPOUNDS.

Country Status (5)

Country Link
US (1) US5132415A (en)
EP (1) EP0416565B1 (en)
JP (1) JPH03100001A (en)
AT (1) ATE101858T1 (en)
DE (2) DE3929883A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003225089A (en) * 2002-02-04 2003-08-12 National Institute Of Agrobiological Sciences Porcine RAG-1 gene and use thereof
US7803395B2 (en) 2003-05-15 2010-09-28 Biomerix Corporation Reticulated elastomeric matrices, their manufacture and use in implantable devices
US7763077B2 (en) 2003-12-24 2010-07-27 Biomerix Corporation Repair of spinal annular defects and annulo-nucleoplasty regeneration

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL43573A (en) * 1972-11-15 1977-08-31 Petroles D Aquitain Soc Nat De Enzymes fixed on a solid cellulose support
US3884631A (en) * 1973-02-26 1975-05-20 Us Agriculture Preparation of cellulose n,n-dimethylformimidate chloride in textile form, and conversion to halogenodeoxycelluloses and cellulose formate
US3920391A (en) * 1974-01-28 1975-11-18 Us Agriculture Flame-retardant textiles by reaction of cellulose with the adduct of phosphorus trichloride and N,N-dimethylformamide
DE3524596A1 (en) * 1985-07-10 1987-01-15 Akzo Gmbh DIALYSIS MEMBRANE MADE OF MODIFIED CELLULOSE WITH IMPROVED BIOCOMPATIBILITY
DE3723897A1 (en) * 1987-07-18 1989-01-26 Akzo Gmbh CELLULOSE DERIVATIVES AND FIBERS AND MEMBRANES MADE THEREOF
DE3840174A1 (en) * 1987-12-11 1989-06-22 Akzo Gmbh BIOCOMPATIBLE CELLULOSE DIALYSEM MEMBRANE WITH INCREASED BETA-2-MICROGLOBULIN ADSORPTION
DE3840175A1 (en) * 1987-12-11 1989-06-22 Akzo Gmbh MODIFIED CELLULOSE FOR BIOCOMPATIBLE DIALYSIS MEMBRANES
DE3901946A1 (en) * 1988-02-25 1989-09-07 Akzo Gmbh MODIFIED CELLULOSE FOR BIOCOMPATIBLE DIALYSIS MEMBRANES III AND METHOD FOR THE PRODUCTION THEREOF
DE3901947A1 (en) * 1988-02-25 1989-09-07 Akzo Gmbh MODIFIED CELLULOSE FOR BIOCOMPATIBLE DIALYSIS MEMBRANES II AND METHOD FOR THE PRODUCTION THEREOF
EP0330134A1 (en) * 1988-02-25 1989-08-30 Akzo Nobel N.V. Modified cellulose for biocompatible dialysis membranes IV, and method for its preparation
DE3901945A1 (en) * 1988-02-25 1989-09-07 Akzo Gmbh MODIFIED CELLULOSE FOR BIOCOMPATIBLE DIALYSIS MEMBRANES IV AND METHOD FOR THE PRODUCTION THEREOF

Also Published As

Publication number Publication date
DE3929883A1 (en) 1991-03-14
EP0416565A1 (en) 1991-03-13
EP0416565B1 (en) 1994-02-23
DE59004672D1 (en) 1994-03-31
US5132415A (en) 1992-07-21
JPH03100001A (en) 1991-04-25

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Legal Events

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